Nak-ai, W. ., U. Jiawiwatkul, L. . Temsirikulchai, and K. . Nontapattamadul. “Healthy Public Policy Process in Ethnic Groups: A Qualitative Study”. Kasetsart Journal of Social Sciences, vol. 42, no. 3, July 2021, pp. 661–667, https://so04.tci-thaijo.org/index.php/kjss/article/view/253499.